对…是必要的;

Some goods, necessary for development, are available only from abroad.
一些对经济发展不可缺少的商品只能从国外获得.
来源:词典精选例句This has made it necessary for agriculture and industry to develop very quickly.
这就使得工农业必须飞速发展.
来源:《简明英汉词典》Food subsidies are necessary for keeping down the price of dairy products and bread.
食品补贴对控制乳制品和面包的价格是必要的.
来源:《简明英汉词典》It's necessary for leading cadres to keep frequent contacts with the masses.
领导应和群众经常见面.
来源:《现代汉英综合大词典》
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